Inspired by Ranjit’s instrument-a-day, I’m writing a new wrist watch face every day for my programmable inPulse watch. The full sources are posted online for others to build on.

Day 1 was a fixed point 3D rendering engine with a rotating Utah Teapot, day 2 was a rolling odometer or aviation altitude ticker display and day 3 is a 24-hour analog clock. This last one still needs some work.